Coform fibrous materials and method for making same
US8808594B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2014 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Jan 6, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/0985
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for producing a coform fibrous materials comprising the steps of supplying a first fiber forming stream comprising a first phase comprising a polymer melt and a second phase comprising a pressurized gas to a two-phase flow nozzle, supplying a separate second stream containing at least one secondary material to the two-phase flow nozzle, combining the first fiber forming stream and the second stream to form a composite fiber forming stream and fibrillating the composite fiber forming stream into a coform fibrous web. Superabsorbent and filtration coform fibrous materials for filtration and produced using the method are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.